Help Me Diagnose These Noises- - BMW 3-Series (E90 E92) Forum

sgtpeper · 11-11-2012, 07:02 PM

Hi All,

So I hadnt driven my car in a few days and I started and there was a slight squeal for maybe a second when I started the car. The same thing happened again today when I first started the car after not driving it for a day. Its about 30 degrees here in Denver today and the car definitely sounded a bit like a diesel. Any ideas?

The other issues I've noticed for the last week or so is that when I'm idling even when the engine is warm I sometimes get a sort of stutter. I checked for codes and I don't have any. What could this be?

I have accessport (last 500 miles), cone intake (last 500 miles), new plugs, fresh oil.

Thanks in advance for the help.

Beemw335 · 11-11-2012, 08:19 PM

Its completely normal for the car to run a bit rough when its for cold outside. But once warmed up it should run fine, if not its either plugs (you have new ones to forget that) injectors coils or carbon buildup.

sgtpeper · 11-11-2012, 09:29 PM

When do most people see problems with carbon buildup? I'm at ~31k miles now.

sgtpeper · 11-12-2012, 11:48 AM

Bump?

sgtpeper · 11-15-2012, 01:11 AM

Bump? Help?

11-11-2012, 07:02 PM	#1
sgtpeper Private Drives: '09 e90 335i xDrive Join Date: Feb 2008 Location: Denver Posts: 79 iTrader: (0)	Help Me Diagnose These Noises- Hi All, So I hadnt driven my car in a few days and I started and there was a slight squeal for maybe a second when I started the car. The same thing happened again today when I first started the car after not driving it for a day. Its about 30 degrees here in Denver today and the car definitely sounded a bit like a diesel. Any ideas? The other issues I've noticed for the last week or so is that when I'm idling even when the engine is warm I sometimes get a sort of stutter. I checked for codes and I don't have any. What could this be? I have accessport (last 500 miles), cone intake (last 500 miles), new plugs, fresh oil. Thanks in advance for the help. __________________ Jeff '09 e90 335i xDrive 6MT '74 Alfa Romeo Spider
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11-11-2012, 09:29 PM	#3
sgtpeper Private Drives: '09 e90 335i xDrive Join Date: Feb 2008 Location: Denver Posts: 79 iTrader: (0)	When do most people see problems with carbon buildup? I'm at ~31k miles now. __________________ Jeff '09 e90 335i xDrive 6MT '74 Alfa Romeo Spider

11-12-2012, 11:48 AM	#4
sgtpeper Private Drives: '09 e90 335i xDrive Join Date: Feb 2008 Location: Denver Posts: 79 iTrader: (0)	Bump? __________________ Jeff '09 e90 335i xDrive 6MT '74 Alfa Romeo Spider

11-15-2012, 01:11 AM	#5
sgtpeper Private Drives: '09 e90 335i xDrive Join Date: Feb 2008 Location: Denver Posts: 79 iTrader: (0)	Bump? Help? __________________ Jeff '09 e90 335i xDrive 6MT '74 Alfa Romeo Spider

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11-11-2012, 08:19 PM	#2
Beemw335 Lieutenant Colonel Drives: 335i Join Date: Mar 2011 Location: My car is my home Posts: 1,981 iTrader: (2)	Its completely normal for the car to run a bit rough when its for cold outside. But once warmed up it should run fine, if not its either plugs (you have new ones to forget that) injectors coils or carbon buildup.